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Yu Zheng

Beijing, PA: #2 of 2 inventorsTop 100%
Overall (1989): #39,129 of 140,708Top 30%
1 Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4815784 Automobile sunshield — 1989-03-28

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